Goodwill and Other Intangible Assets (Changes In The Carrying Amount Of Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	$ 2,360	$ 2,539
Amortization	(54)	(53)
Foreign currency translation, net	0	(34)
Ending balance	2,306	2,452
Investment Servicing
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	2,321	2,492
Amortization	(52)	(51)
Foreign currency translation, net	0	(32)
Ending balance	2,269	2,409
Investment Management
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	39	47
Amortization	(2)	(2)
Foreign currency translation, net	0	(2)
Ending balance	$ 37	$ 43